Other Comprehensive Income (Loss) - Schedule of Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain (loss) on sale of investment securities	$ 21	$ (1,982)	$ 290	$ (3,832)
Income tax benefit (expense)	3,293	16,907	1,245	55,558
Total	24,246	(67,513)	45,882	(135,613)
Amount Reclassified from Accumulated  Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain (loss) on sale of investment securities	21	1,982	290	3,832
Gain (loss) on fair value hedging relationships - AFS securities	(7)	0	(21)	0
Gain (loss) on cash flow hedging relationships - Loans	(443)	0	(1,208)	0
Income tax benefit (expense)	104	(396)	226	(1,115)
Total	$ (325)	$ 1,586	$ (713)	$ 2,717